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When OnePlus released the OnePlus 3 flagship smartphone, it didn't stay the flagship for long. The company listened to customer feedback and quickly replaced it with the OnePlus 3T.

So, when the OnePlus 5 suddenly became 'sold out' pretty much everywhere just months after it had been launched in a blaze of hype, the rumour mill (correctly) suggested that the OnePlus 5T was on the way - and so it proved.

(The '4' designation was skipped by OnePlus as the number 4 is considered unlucky in much of OnePlus's part of the world).

So after our positive review of the 5, what more is there to say about its successor, and is it worth trying to pick one up in the post-Christmas January sales?

DesignTo misquote Henry Ford, the OnePlus 5T is available in any colour as long as it's Midnight Black. Honestly though, handset colour choice matters less and less when everyone with any sense whacks the handset straight in a case -- and as ever, OnePlus has given us some lovely choices in the form of wood grain, carbon fibre, and plain-coloured silicone variants.

As before, the phone comes with a screen protector pre-applied, which saves you covering the lovely OLED screen in bubbles and creases from misapplication (anyone who can put a protector on without these problems is a straight-up robot, in our view). And as before, the handset is not waterproof, so don't use it for reading in the bath.

OnePlus claim that the 5T's slender aluminium unibody is covered with a three-phase black coating, followed by two sandblastings and an anti-fingerprint finish. Honestly, the result is fairly standard-looking for a metal phone, but it does have a satin-smooth feel and a scintillating sheen.

The ceramic, circular fingerprint pad sits in the centre back, above the fairly subtle OnePlus logo, and the dual camera lenses emerge from their own encased hump beside the flash unit. The back curves gently, as do the rounded-off corners, completing an ergonomically and aesthetically pleasing chassis that - let's be honest - somewhat resembles an iPhone 7 Plus. Well, give the people what they want, and evidently notched screens don't make the cut.

The left side of the handset features the textured alert slider and a pleasantly clicky volume rocker. The SIM tray is on the right edge with the power button below, and the speakers, USB-C charging port and headphone jack (yay) are all lined up along the bottom.

The top and tail bezels on either end of the display have seen a considerable trim since the 5, and the physical home key with fingerprint sensor is gone altogether. Instead, we're back to software keys, with the fingerprint pad on the back. It's no great loss, and ceases being noticeable within a few minutes.